Home / 1,186,040.73-1,636,736.94-642,176.90

Finding the Fourth Proportional to 1,186,040.73, 1,636,736.94 and 642,176.90

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Solution

The fourth proportional to 1,186,040.73, 1,636,736.94 and 642,176.90 is: 886,204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,040.73 : 1,636,736.94 = 642,176.90 : x
  2. Step 2: Convert to fraction form
    1,186,040.73/1,636,736.94 = 642,176.90/x
  3. Step 3: Cross multiply
    1,186,040.73x = 1,636,736.94 × 642,176.90
  4. Step 4: Simplify right side
    1,186,040.73x = 1,051,074,646,061.00
  5. Step 5: Solve for x
    x = 1,051,074,646,061.00/1,186,040.73
  6. Step 6: Final answer
    x = 886,204.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.